CN104927250A - Novel hard PVC pipe and production process thereof - Google Patents
Novel hard PVC pipe and production process thereof Download PDFInfo
- Publication number
- CN104927250A CN104927250A CN201510387409.8A CN201510387409A CN104927250A CN 104927250 A CN104927250 A CN 104927250A CN 201510387409 A CN201510387409 A CN 201510387409A CN 104927250 A CN104927250 A CN 104927250A
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- Prior art keywords
- cutting
- product
- stearate
- parts
- pvc pipe
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention relates to a novel hard PVC pipe and a production process thereof. The novel hard PVC pipe is prepared from the following raw materials in parts by weight: 100 parts of PVC, 0.8-2.5 parts of tribasic lead sulfate, 0.6-1.5 parts of dibasic lead phosphite, 0.23-0.4 part of lead stearate, 0.2 part of calcium stearate, 0.3 part of barium stearate, 0.2-0.6 part of stearic acid, 0.2-0.5 part of paraffin, 0.1-0.2 part of PE wax, 1.0-30.0 parts of light calcium carbonate and 0.012-0.01 part of carbon black. A processing method of the novel hard PVC pipe comprises the following steps of: raw material mixing; processing on an extruder part; processing on an extruding die head part; sizing and cooling; pipe traction; cutting; traction; flaring; inspection; and product warehousing. The novel hard PVC pipe manufactured by the processing process is not only relatively good in low-temperature toughness, rigidity, ring stiffness and creep-resistance, but also not deformed as a result of gravity in a long-term using process, so that the service life of the product is prolonged, and wide popularization is facilitated.
Description
Technical field
The present invention relates to a kind of New Rigid PVC and production technique thereof, belong to plastic pipe processing technique field.
Background technology
Plastic pipe is the bulk product in plastics, and the output of rigid polyvinyl chloride (PVC) tubing accounts for whole plastic pipe output 55 more than %.Hard PVC tubing compared with the traditional piping material such as metal pipe material, materials used for cement pipes, have that density is little, easy coloring, do not need application, corrosion-resistant, thermal conductivity is low, good insulation preformance energy consumption is low, resistance to flow is little, inwall non-scaling, construction and installation and the advantage such as easy to maintenance.Due to Rigid PVC Pipe, market potential is very large at home, thus produces and also sharply expands, and for this reason, summarize the experience be engaged in plastic pipe for many years and manufactured, the design with regard to Rigid PVC Pipe formula, technique is discussed.
Summary of the invention
The object of the invention is to: for the defect of prior art, propose a kind of New Rigid PVC and production technique thereof, the New Rigid PVC made by this complete processing, there is low-temperature flexibility, rigidity, ring stiffness and creep resisting ability all good time not only, and in life-time service process, because of gravity deformation, thus the work-ing life of product can not be extended, contribute to the popularization of wide model.
The technical solution adopted in the present invention is: a kind of New Rigid PVC, and the formula of described New Rigid PVC is made up of the raw material of following deal:
Polyvinyl chloride resin: 100
Tribasic lead sulfate: 0.8-2.5
Dibasic lead phosphite: 0.6-1.5
Lead stearate: 0.23-0.4
Calcium stearate: 0.2
Barium stearate: 0.3
Stearic acid: 0.2-0.6
Paraffin: 0.2-0.5
PE wax: 0.1-0.2
Light calcium carbonate: 1.0-30.0
Carbon black: 0.012-0.01.
In the present invention: a kind of production technique of New Rigid PVC, comprises the following steps:
The first step, raw material mix: proportionally successively add in dry mixed machine with technique by other auxiliary materials such as PVC raw material, barium stearate, calcium stearate, light calcium carbonate, carbon blacks, remove moisture, material enters into the hopper of forcing machine after fully drying, mixing, and wherein dry temperature is less than 80 degree;
Second step, forcing machine part: when screw rod rotates in machine barrel, by PVC compound plasticizing pusher to head, thus reach compacting, melting, mixing homogenizing and realize be vented, dehydration object;
3rd step, extrusion die part: through the PE of compacting, melting, mixing homogenizing, have subsequent material to push die head to through screw rod, extrusion die is the key part of product moulding;
4th step, sizing, cooling: PE Vacuum shaping cooler is used for sizing, the cooling of section bar, the vacuum system for shaping and cool and water circulation system Vacuum shaping cooler be equipped with, stainless steel casing, circulation water ring soaks cooling, Vacuum shaping cooler is equipped with movable device and left and right, just regulates hand gear;
5th step, tubing draw: tractor is used for extracting cooling hardening section bar from head continuously, automatically, speed control by frequency variation;
6th step, cutting: after travel switch as requested cut to lengthen, carry out surface trimming, and time delay translation frame, carry out straight-lined manufacturing, cutting machine for instruction, completes cutting whole process with fixed length work switch signal, run with section bar in cutting process and keep synchronous, cutting process is completed by electronic and pneumatic actuation, and cutting machine is provided with suction device, and the timely sucking-off of chip cutting produced also reclaimed;
7th step, traction: the effect of towing mechanism is that the tubing extruded to head provides certain tractive force and pulling speed, draw tubing equably, and the wall thickness by regulating pulling speed to regulate pipe, pulling speed requires very even, and energy stepless speed regulation, pulling speed depends on extruded velocity, general pulling speed faster than extruded velocity 1% one 3%;
8th step, enlarging;
9th step, inspection: the product after cutting is put into inspection machine and checks product whether to have substandard products;
Tenth step, product warehousing: by the packing of product warehouse-in be up to the standards.
After adopting technique scheme, beneficial effect of the present invention is: the New Rigid PVC made by this complete processing, there is low-temperature flexibility, rigidity, ring stiffness and creep resisting ability all good time not only, and in life-time service process, can not because of gravity deformation, thus extend the work-ing life of product, contribute to the popularization of wide model.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1
A kind of New Rigid PVC, the formula of described New Rigid PVC is made up of the raw material of following deal:
Polyvinyl chloride resin: 100
Tribasic lead sulfate: 0.8-2.5
Dibasic lead phosphite: 0.6-1.5
Lead stearate: 0.23-0.4
Calcium stearate: 0.2
Barium stearate: 0.3
Stearic acid: 0.2-0.6
Paraffin: 0.2-0.5
PE wax: 0.1-0.2
Light calcium carbonate: 1.0-30.0
Carbon black: 0.012-0.01.
In the present invention: a kind of production technique of New Rigid PVC, comprises the following steps:
The first step, raw material mix: proportionally successively add in dry mixed machine with technique by other auxiliary materials such as PVC raw material, barium stearate, calcium stearate, light calcium carbonate, carbon blacks, remove moisture, material enters into the hopper of forcing machine after fully drying, mixing, and wherein dry temperature is less than 80 degree;
Second step, forcing machine part: when screw rod rotates in machine barrel, by PVC compound plasticizing pusher to head, thus reach compacting, melting, mixing homogenizing and realize be vented, dehydration object;
3rd step, extrusion die part: through the PE of compacting, melting, mixing homogenizing, have subsequent material to push die head to through screw rod, extrusion die is the key part of product moulding;
4th step, sizing, cooling: PE Vacuum shaping cooler is used for sizing, the cooling of section bar, the vacuum system for shaping and cool and water circulation system Vacuum shaping cooler be equipped with, stainless steel casing, circulation water ring soaks cooling, Vacuum shaping cooler is equipped with movable device and left and right, just regulates hand gear;
5th step, tubing draw: tractor is used for extracting cooling hardening section bar from head continuously, automatically, speed control by frequency variation;
6th step, cutting: after travel switch as requested cut to lengthen, carry out surface trimming, and time delay translation frame, carry out straight-lined manufacturing, cutting machine for instruction, completes cutting whole process with fixed length work switch signal, run with section bar in cutting process and keep synchronous, cutting process is completed by electronic and pneumatic actuation, and cutting machine is provided with suction device, and the timely sucking-off of chip cutting produced also reclaimed;
7th step, traction: the effect of towing mechanism is that the tubing extruded to head provides certain tractive force and pulling speed, draw tubing equably, and the wall thickness by regulating pulling speed to regulate pipe, pulling speed requires very even, and energy stepless speed regulation, pulling speed depends on extruded velocity, general pulling speed faster than extruded velocity 1% one 3%;
8th step, enlarging;
9th step, inspection: the product after cutting is put into inspection machine and checks product whether to have substandard products;
Tenth step, product warehousing: by the packing of product warehouse-in be up to the standards.
For a person skilled in the art, any equal amendment to the technical program and substitute be all within the scope of the invention.Therefore, equalization conversion done without departing from the spirit and scope of the invention and amendment, all should be encompassed in scope of the present invention.
Claims (2)
1. a New Rigid PVC, is characterized in that: the formula of described skinning low ratio foamed hard PVC tubing is made up of the raw material of following deal:
Polyvinyl chloride resin: 100
Tribasic lead sulfate: 0.8-2.5
Dibasic lead phosphite: 0.6-1.5
Lead stearate: 0.23-0.4
Calcium stearate: 0.2
Barium stearate: 0.3
Stearic acid: 0.2-0.6
Paraffin: 0.2-0.5
PE wax: 0.1-0.2
Light calcium carbonate: 1.0-30.0
Carbon black: 0.012-0.01.
2. a production technique for New Rigid PVC, is characterized in that: comprise the following steps:
The first step, raw material mix: proportionally successively add in dry mixed machine with technique by other auxiliary materials such as PVC raw material, barium stearate, calcium stearate, light calcium carbonate, carbon blacks, remove moisture, material enters into the hopper of forcing machine after fully drying, mixing, and wherein dry temperature is less than 80 degree;
Second step, forcing machine part: when screw rod rotates in machine barrel, by PVC compound plasticizing pusher to head, thus reach compacting, melting, mixing homogenizing and realize be vented, dehydration object;
3rd step, extrusion die part: through the PE of compacting, melting, mixing homogenizing, have subsequent material to push die head to through screw rod, extrusion die is the key part of product moulding;
4th step, sizing, cooling: PE Vacuum shaping cooler is used for sizing, the cooling of section bar, the vacuum system for shaping and cool and water circulation system Vacuum shaping cooler be equipped with, stainless steel casing, circulation water ring soaks cooling, Vacuum shaping cooler is equipped with movable device and left and right, just regulates hand gear;
5th step, tubing draw: tractor is used for extracting cooling hardening section bar from head continuously, automatically, speed control by frequency variation;
6th step, cutting: after travel switch as requested cut to lengthen, carry out surface trimming, and time delay translation frame, carry out straight-lined manufacturing, cutting machine for instruction, completes cutting whole process with fixed length work switch signal, run with section bar in cutting process and keep synchronous, cutting process is completed by electronic and pneumatic actuation, and cutting machine is provided with suction device, and the timely sucking-off of chip cutting produced also reclaimed;
7th step, traction: the effect of towing mechanism is that the tubing extruded to head provides certain tractive force and pulling speed, draw tubing equably, and the wall thickness by regulating pulling speed to regulate pipe, pulling speed requires very even, and energy stepless speed regulation, pulling speed depends on extruded velocity, general pulling speed faster than extruded velocity 1% one 3%;
8th step, enlarging;
9th step, inspection: the product after cutting is put into inspection machine and checks product whether to have substandard products;
Tenth step, product warehousing: by the packing of product warehouse-in be up to the standards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510387409.8A CN104927250A (en) | 2015-07-06 | 2015-07-06 | Novel hard PVC pipe and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510387409.8A CN104927250A (en) | 2015-07-06 | 2015-07-06 | Novel hard PVC pipe and production process thereof |
Publications (1)
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| CN104927250A true CN104927250A (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510387409.8A Pending CN104927250A (en) | 2015-07-06 | 2015-07-06 | Novel hard PVC pipe and production process thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105694292A (en) * | 2016-03-23 | 2016-06-22 | 潘豪杰 | Nano calcium carbonate modified PVC bellows and preparation method thereof |
| CN106046591A (en) * | 2015-12-22 | 2016-10-26 | 上海上塑控股（集团）有限公司 | Polyvinyl chloride foamed pipe |
| CN106751150A (en) * | 2016-11-30 | 2017-05-31 | 安庆市月岭塑业有限公司 | A kind of used in construction drainage PVC and preparation method thereof |
| CN107345034A (en) * | 2016-05-06 | 2017-11-14 | 江苏桓通环境科技有限公司 | A kind of high-strength polyvinyl chloride pipe and its production method |
| CN107602979A (en) * | 2017-09-15 | 2018-01-19 | 江苏攸途健身器材有限公司 | A kind of modified wear-resistant plastic barbell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149602A (en) * | 1996-03-14 | 1997-05-14 | 冯祯祥 | Antistatic hardening polyvinyl-chloride tube and producing method |
| CN1559781A (en) * | 2004-03-03 | 2005-01-05 | 佛山塑料集团股份有限公司 | Hard PVC pipe fitting for building water supply and its manufacturing method |
| CN1919919A (en) * | 2006-09-15 | 2007-02-28 | 河北宝硕管材有限公司 | High rush-resistant polyvinyl chloride pipe for drinking and preparation method thereof |
| CN103992598A (en) * | 2014-04-30 | 2014-08-20 | 安徽省宁国市明浩包装材料有限公司 | Flame-retardant bendable hard tube and production method thereof |
-
2015
- 2015-07-06 CN CN201510387409.8A patent/CN104927250A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149602A (en) * | 1996-03-14 | 1997-05-14 | 冯祯祥 | Antistatic hardening polyvinyl-chloride tube and producing method |
| CN1559781A (en) * | 2004-03-03 | 2005-01-05 | 佛山塑料集团股份有限公司 | Hard PVC pipe fitting for building water supply and its manufacturing method |
| CN1919919A (en) * | 2006-09-15 | 2007-02-28 | 河北宝硕管材有限公司 | High rush-resistant polyvinyl chloride pipe for drinking and preparation method thereof |
| CN103992598A (en) * | 2014-04-30 | 2014-08-20 | 安徽省宁国市明浩包装材料有限公司 | Flame-retardant bendable hard tube and production method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106046591A (en) * | 2015-12-22 | 2016-10-26 | 上海上塑控股（集团）有限公司 | Polyvinyl chloride foamed pipe |
| CN105694292A (en) * | 2016-03-23 | 2016-06-22 | 潘豪杰 | Nano calcium carbonate modified PVC bellows and preparation method thereof |
| CN107345034A (en) * | 2016-05-06 | 2017-11-14 | 江苏桓通环境科技有限公司 | A kind of high-strength polyvinyl chloride pipe and its production method |
| CN106751150A (en) * | 2016-11-30 | 2017-05-31 | 安庆市月岭塑业有限公司 | A kind of used in construction drainage PVC and preparation method thereof |
| CN107602979A (en) * | 2017-09-15 | 2018-01-19 | 江苏攸途健身器材有限公司 | A kind of modified wear-resistant plastic barbell |
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Application publication date: 20150923 |
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| WD01 | Invention patent application deemed withdrawn after publication |